A small troop of exhausted volunteers have completed a 17 hour obstacle-ridden run around Hull.

13 people, divided into seven teams, darted between various parts of the city and surrounding areas, solving puzzles and completing multiple challenges along the way.

The competitors were all friends and family of the imaginative Emma Waslin, who organised the challenge as a fundraising activity for Alzheimer's Research UK.

Completing a Supermarket Sweep-style race at ASDA in Kingswood, piecing together a jigsaw of Moby Dick at Burton Constable Hall and combating a local fencing group were all part of the marathon event.

The competitors took part to raise money for Alzheimer's Research UK. (Image: Katie Pugh)

Racers also had to busk in Hull city centre, dance to an acceptable standard at Hull Truck Theatre and go on a swing ride at Hull Fair.

The event, which was supported by more than 20 local businesses by way of either accommodation, prize-donating or giving lump sums of cash, has raised more than £2,000.

Such was the sophistication in preparing the event, 30-year-old Emma, who hails from the Newland Avenue area but now lives and works in London, spent several days back in Hull beforehand to put it together.

"Growing up I always enjoyed gameshows with lots of challenges in them, and the jobs I've done have always required a lot of imagination. So putting it together, ideas just came to me from all kinds of things.

The challenge was the brainchild of Emma Waslin, who is originally from the Newland Avenue area of Hull. (Image: Katie Pugh)

"I'm quite pleased with how it went. There were some things I had no control over, like the traffic as people went between places, but I managed to prepare as best I could."

It's a cause close to Emma's heart, as three of her four grandparents suffered from some form of dementia.

"I did a skydive for Alzheimer's Research a couple of years ago, but we felt that wasn't really enough," she said.